Figure 1
Pre-bottleneck, bottleneck, and post-bottleneck processing stages with noise (N) in Task 1 (T1) and Task 2 (T2).
Figure 2
Two exemplary trials with SOA = 500 ms, where processing noise results in a temporal T1-T2 overlap on one trial (top part) but not on another trial (bottom part).
Figure 3
A. Reaction times for Task 1 (T1, RT1) and B. reaction times for Task 2 (T2, RT2) as a function of the stimulus onset asynchrony (SOA) and of the task sequence. Error bars represent the standard error of the mean.
Figure 4
A. Error rates in Task 1 (T1) and B. in Task 2 (T2) as a function of the stimulus onset asynchrony (SOA) and of the task sequence. Error bars represent the standard error of the mean.
Figure 5
Reaction times for Task 2 (RT2) as a function of the response-stimulus interval (RSI). Data are plotted separately for repetition trials (left) and switch trials (right). Solid lines represent segmented linear regression fits to the data points in the respective graph. For comparison, dashed lines show the corresponding fits from the other graph.
Table 1
Results of the linear mixed-effects model for the dependent variable RT2. Substantive significance (p < 0.05 combined with d > 0.2) is indicated in bold. d > 0.2, d > 0.5 and d > 0.8 is regarded a small, medium and large effect size, respectively.
| χ2 | df | p | d | |
|---|---|---|---|---|
| RSI | 7723.7 | 1 | <0.001 | 1.620 |
| Class | 21.3 | 1 | <0.001 | 0.554 |
| sequence | 232.7 | 1 | <0.001 | 0.332 |
| RSI:class | 7929.5 | 1 | <0.001 | 2.940 |
| sequence:class | 47.5 | 1 | <0.001 | 0.031 |